Re: UK Aroids

Thanks to Peter for this definitive statement on aroids native to the UK. May I also add that I have also found naturalized populations of Lysichiton americanus together with L. camtschatcensis and their cream-colored hybrid. The photos of these two species in my book Aroids - Plants of the Arum Family were taken in in wet woodland on the Hampshire-Berkshire border. They had spread downstream from a large garden where they were originally planted as ornamentals beside the section of stream that ran through the property. This should perhaps serve as a warning to anyone whose land borders on natural watercourses. They're a magnificent sight but they don't belong in the wild.

Recently, on the field trip to the Haut Chitelet Alpine Botanical Garden during the Xth International Aroid Conference, I noticed Lysichiton seedlings downstream from the main garden. It would be interesting to know how long it takes plants such as these to get up to mischief and how they change the ecology of the habitats they invade.